大力爪式千斤頂的主軸都是高密度處理的合金鋼材質，主軸表麵非常光滑
，這樣在起重的過程中對爪式千斤頂上部密封橡膠環的摩擦就huibiandefeichangxiao，pinfenshiyongyebuhuiduixiangjiaoquanchanshengpohuai，zaochengyinxiangjiaoquanfangdadeqingkuang，jiejuedechuantongzhaoshiqianjindinglouyoudewenti，zheyangdegaomiduzhuzhoubujinzengjialezhaoshiqianjindingdeshiyongshouming，gengbaozhengleshiyongdeanquanxing，buhuichuxianshiyongguochengzhongturanlouyou，daozhiyiwaiqingkuangdefashengdeqingkuang。zhaoshiqianjindingzhuyaoyingyongyudaxingshebeideqizhongfangmian，youqishifengxibijiaoxiao
，yibandeqizhongqiwufafangzhizaiwupinxiamiandeshihou，zhaoshiqianjinding就可以很好的使用，爪式千斤頂的爪部*少可以是20mm，因此這樣可以將爪部放置在物品下麵起升。